23results about How to "Reduce melting" patented technology

The invention belongs to the technical field of slope support, and relates to a support device for high-altitude area mine geological disaster control, which comprises concrete columns, the concrete columns are arranged in a staggered manner to form a grid, steel bars are poured and fixed in the concrete columns, and the support device further comprises an anchoring assembly and a semiconductor temperature control assembly. The anchoring assembly comprises an anchor rod and a connecting piece, the anchor rod is arranged to be a hollow rod body, the connecting piece comprises a shell, the shell is detachably connected with the anchor rod, and the shell is provided with a limiting hole for the steel bar to penetrate through. The semiconductor temperature control assembly comprises a cold end and a hot end, the cold end and the hot end are connected through direct current, the cold end is arranged in the anchor rod, temperature conduction is conducted between the cold end and the anchor rod, and the cold end is used for cooling a frozen soil layer, so that the phenomenon that the frozen soil layer is excavated while the frozen soil layer is excavated is reduced, and the stability of slope protection is improved; and the hot end and the steel bars conduct temperature and are used for heating the concrete column, the setting time of the concrete column can be shortened, and the strength of the concrete column is improved.

The invention discloses a method for reducing slag entrapment of a tundish in the steel ladle exchange process. The technical problem of slag entrapment in the steel ladle exchange process in the prior art is solved. The method comprises the steps that a first steel ladle stops pouring and ascends; the second steel ladle is placed above the tundish and gradually descends, and meanwhile air is blown to a long nozzle of the second steel ladle till the long nozzle of the second steel ladle is inserted into the position, below 280 mm-320 mm, of the liquid level in the tundish; the long nozzle of the second steel ladle is connected with a skimmer, the skimmer comprises a connecting section and a skimming section which are connected with each other, the connecting section is connected to the long nozzle, and the outer diameter of the skimming section is sequentially reduced from top to bottom; the sliding plate of the second steel ladle is opened, so that molten steel in the second steel ladle flows into the tundish through the long nozzle, and steel ladle exchange is completed; the air blowing amount under the condition that the insertion depth H of the long nozzle is not greater than 150mm is greater than that under the condition that the insertion depth H of the long nozzle is greater than 150mm, so that slag entrapment is reduced. According to the method, the slag entrapment amount of the molten steel can be reduced, the cleanliness of the molten steel is improved, and the stamping cracking rate of finished products is reduced.

The invention relates to the technical field of fuel cells, and particularly discloses a preparation method of a fuel cell graphite composite plate and the graphite composite plate prepared by the preparation method. The preparation method of the fuel cell graphite composite plate comprises the following steps: S1, raw material granulation: weighing 201 + / -10 parts of graphite composite powder, uniformly spreading the graphite composite powder on a flat plate, drying at 90-150 DEG C for 10-30 minutes, cooling, and crushing to prepare composite powder particles with the particle size of 200 + / -100 meshes; and S2, uniformly spreading the prepared composite powder particles in a mold, carrying out low-pressure prepressing during mold pressing, carrying out secondary material distribution on a gas flow field side, and finally carrying out hot press molding to prepare the fuel cell composite graphite plate. The graphite composite plate for the fuel cell can be used for preparing the fuel cell, and has the advantages of low contact resistance with carbon paper and high conductivity; in addition, the preparation method has the advantages that material distribution is convenient, and the adverse effect of contact resistance of the composite plate and the membrane electrode on the performance of the fuel cell is reduced.

The utility model relates to candle lamp technical field, specifically disclose a candle lamp controller with safety protection structure, including the shell, the shell is cylindrical barrel -shaped structure, the outer surface of one end of shell away from the soft light cover snap -on installation has the bottom shell, the inside snap -on installation of shell has control mainboard. This candle lamp controller with safety protection structure, when candle lamp after a period of use control mainboard and LED lamp circuit board will produce heat, at this time heat will be conducted to the heat dissipation silica gel pad and the heat conduction silica gel pad, at this time through thermistor can monitor the operating temperature of candle lamp, make temperature exceed the limit value of thermistor after, LED lamp circuit board can automatically power off to reduce the temperature rise, reduce the melting or combustion fire of shell, soft light cover and other components due to long -term use, greatly promote the safety of candle lamp use time and promote the life of use.

The invention relates to the technical field of integrated circuit component packaging, in particular to a dip welding type copper strip winding type welding column preparation device and method. Comprising a lead wire traction mechanism for leading out a lead wire, a copper strip winding mechanism for winding a copper strip on the lead wire, a segmented placement mechanism for cutting the copper strip wrapped lead wire, a gantry clamping mechanism for grabbing and rotating the copper strip wrapped lead wire, a dip welding mechanism for soldering the tin copper strip wrapped lead wire and a welding column cutting and collecting mechanism for cutting and collecting a welding column, the copper strip winding mechanism comprises a driving motor, a hollow rotating platform is arranged at the output end of the driving motor, a rotating wall plate is arranged on the hollow rotating platform, a copper strip damper for placing a copper strip is arranged at one end of the rotating wall plate, and a guide roller is arranged on the rotating wall plate; the dip welding mechanism comprises a scaling powder heating table, a tin pot heating table and a tin scraping mechanism which are arranged in sequence. The device is simplified, the automation degree is high, the size is small, and batch preparation of the enhanced welding columns can be achieved.

The utility model relates to the technical field of inorganic electrochemical energy storage, in particular to a selective diaphragm and a battery applying the same, which comprise a diaphragm component and a direct current power supply electrically connected with the diaphragm component so as to form an electric field around the diaphragm component, and the diaphragm component comprises an insulating part and a conductive part positioned on one side of the insulating part and used for supporting the diaphragm. According to the selective diaphragm, the charge type of the diaphragm assembly can be changed by changing the connection mode of the diaphragm assembly and the direct-current power supply, so that ions transmitted by the diaphragm are selected. According to the utility model, the conductive part is arranged on the side edge of the insulating part, and the conductor of the conductive part can support and fix the insulating part and prevent the insulating part from deforming, so that the shrinkage of a diaphragm micropore is reduced, and the stability of ion penetration is ensured; meanwhile, the heat insulation effect of the conductive part is good, the insulating part can be protected, the problem that the insulating part is melted due to high temperature of the electrolyte solution when the battery works is solved, and the safety is improved.

The present invention discloses an ice storage bucket and a manufacturing method thereof, wherein the ice storage bucket comprises an ice storage inner cylinder and an outer shell, the outer shell is wrapped around the outer side of the ice storage inner cylinder, the ice storage inner cylinder comprises an inner cylinder body and a light-isolating layer fixedly connected to the outer wall of the inner cylinder body, the inner cylinder body is integrally formed by using a colorless masterbatch plastic, and the light-isolating layer is made of an opaque material; an insulation gap is provided between the ice storage inner cylinder and the outer shell, and the insulation gap is filled with a polyurethane foaming layer. The present invention does not cause discoloration and thus dye ice cubes, reduces pollution to ice cubes, and improves the visual sensory effect of users.

The invention relates to the technical field of heat-insulating coating adhesives, in particular to an efficient composite heat-insulating coating adhesive as well as a preparation method and application thereof. The coating comprises the following components in parts by weight: 20-40 parts of a water-soluble coating adhesive, 3-6 parts of a heat insulation auxiliary agent, 1-3 parts of a thickening agent, 0.1-0.5 part of a pH regulator, 1-2 parts of a defoaming agent, 3-5 parts of a mildew-proof preservative and 43.5-71.9 parts of water. According to the application, the rope body fusion phenomenon caused by high heat accumulated by external friction in the use process of the UHMWPE rope can be effectively reduced, the use safety of the UHMWPE rope is greatly improved, and meanwhile, the service life of the UHMWPE rope is prolonged.

The invention relates to a material adding device and method for ultrasonic resonance assisted direct deposition of a high-melting-point metal wire. The device comprises a wire feeding system, a control system, an ultrasonic resonance system, an electromagnetic induction heating device, a three-axis moving device, a substrate preheating device and a shear strain transmission device. For a high-melting-point metal wire, a wire feeding system drives the metal wire to be conveyed downwards along a high-temperature wire feeding pipe, an electromagnetic induction heating device at the lower end of the high-temperature wire feeding pipe softens the metal wire, the metal wire and the wire feeding pipe penetrate through a shear strain transmission device together, and a hollow connecting rod loaded with piezoelectric ceramics transmits ultrasonic vibration to the metal wire; the metal wire is extruded through a shear strain deposition head, and the ultrasonic resonance auxiliary direct deposition process of the metal wire is completed; the control system can adjust the amplitude and frequency of ultrasonic vibration, the electromagnetic induction heating temperature, the wire feeding speed, the substrate preheating temperature and the working frequency of the shear strain device according to actual conditions. According to the device, direct deposition of the high-melting-point metal wire is achieved through electromagnetic induction heating, high-frequency ultrasonic vibration can greatly reduce the flow stress of the material, a large number of dislocations are generated, atomic diffusion is promoted, and metallurgical bonding of adjacent metal units is achieved.

The utility model belongs to mechanical technical field, and disclose a pre -wrinkle structure of wrapping film, including moving block, the upper end surface fixed of moving block is equipped with the vertical board, the inside fixed of vertical board is equipped with heating wire, the upper end surface fixed of vertical board is equipped with the oblong plate, the other end of oblong plate is equipped with the storage board of sliding, the upper end surface fixed of storage board is equipped with the control panel, the rear end surface fixed of vertical board is equipped with fixed block, the inside fixed of fixed block is equipped with pivot no. 2, the outside rotation of pivot no. 2 is equipped with the drum no. 2, the other end fixed of pivot no. 2 is equipped with the limit ring, through heating wire, oblong plate, vertical board, through the softening film material of heating, make it more easily form in the process of folding, avoid the breakage, uneven folding etc. caused by the problem of hard folding of material, improve the regularity of wrapping film folding and the quality of finished product after winding, through control panel, can control the temperature of heating wire accurately, reduce the temperature of wrapping film melting too high.

The utility model discloses a food preservation box which comprises a heat preservation box cover and a heat preservation box body, a hand pressure inflator pump is fixed to one side of the top end of the heat preservation box cover, an exhaust valve is fixed to the end, away from the hand pressure inflator pump, of the top end of the heat preservation box cover, a telescopic air bag is fixed to the bottom wall of the heat preservation box cover, and a pressing plate is fixed to the bottom end of the telescopic air bag. A foam layer is arranged at the bottom end of the pressing plate, the foam layer and the pressing plate are fixed in a bonding mode, the heat preservation box body is arranged at the bottom end of the heat preservation box cover, and a test tube rack is fixed to the top end of the inner wall of the heat preservation box body. Compared with an existing food preservation box, the food preservation box is provided with the extrusion mechanism, sample test tubes can be pressed, so that the test tubes are prevented from being crashed due to bumping and jumping in the transportation and movement process, the safety of the device is improved, meanwhile, the device is provided with the ice bag cooling mechanism, the storage temperature of the device can be effectively reduced, and the storage efficiency is improved. The preservation time of the food is prolonged, and the practicability of the device is improved.

The application relates to the field of power distribution cabinets, and discloses a power distribution cabinet with a fireproof and flame-retardant function, which comprises a protection assembly, the protection assembly is installed at the upper end of a main body, the protection assembly is used for cooling the cabinet body and inhibiting internal and external fire sources, the protection assembly mainly comprises an executing mechanism composed of mounting blocks, a piston plate, glass balls, springs and sealing plugs, the glass balls are red, the triggering temperature is 68 DEG C, the power distribution cabinet with the fireproof and flame-retardant function has the protection assembly, the probability of fire source overflow or internal spread is reduced, the generation of toxic gas is reduced, the external fire source can be extinguished while preventing the external fire source from approaching the cabinet body, internal fire source spread to the outside can also be prevented, nitrogen can dilute internal oxygen and toxic gas, and external fire extinguishing agents can be used after the fire extinguishing agents in the cabinet body are consumed, the external fire extinguishing agents are introduced and secondary protection is carried out.

The utility model discloses multi-layer self-adhesive paper with a high-temperature-resistant function, and relates to the technical field of labels. A heat insulation layer covers the bottom paper and comprises a micropore layer, an aerogel felt layer adheres to the micropore layer, the micropore layer is provided with a plurality of heat dissipation holes, the heat dissipation holes are in a honeycomb shape, a plurality of containing grooves are formed in the upper portion of the aerogel felt layer, inner cavities of the containing grooves are filled with aerogel, a bonding layer adheres to the upper portion of the aerogel felt layer, and a top layer adheres to the upper portion of the bonding layer. Connecting paper is arranged on one side of the top layer. According to the utility model, the plurality of heat dissipation holes are formed in the microporous layer and are honeycomb-shaped, so that a large number of air layers and small spaces can be formed in the microporous layer, then the air layers and the small spaces can effectively hinder heat conduction, and air is a poor conductor of heat, so that even in a high-temperature environment, the heat dissipation holes cannot be blocked by the air layers and the small spaces. And the honeycomb-shaped heat dissipation holes can obviously reduce the transmission speed of heat into the microporous layer, so that the heat insulation effect is improved.

The invention provides a pendant for a polarization maintaining optical fiber pendant and a pendant method, and belongs to the technical field of optical fiber manufacturing, the length of the pendant for the polarization maintaining optical fiber pendant is 240mm to 300mm, and the diameter of the pendant is 10mm to 12mm. The method comprises the following steps: welding a pendant at the front end of a rod head of a polarization-maintaining preform rod, wherein the pendant is the pendant for the polarization-maintaining optical fiber pendant in the first aspect; lowering the pendant and the preform to a high-temperature area; and the interior of the furnace body is heated to a set temperature, so that the pendant is fused for wire falling. According to the pendant for the polarization maintaining optical fiber wire falling, after the pendant is fused, a furnace opening cannot be blocked, and therefore normal wire falling can be guaranteed. According to the polarization maintaining optical fiber falling method, in the falling process, after the falling head is fused at a high temperature, falling is conducted through the gravity of the falling head, efficiency is high, the time of a boron rod in a high-temperature area is shortened, melting of the boron rod and deformation of the boron area are reduced, loss of the front end of a formed fiber is remarkably reduced, and the geometric structure is good.

The utility model discloses a hammer mill with a water cooling function, and belongs to the technical field of hammer mills. The hammer mill with the water cooling function comprises a milling chamber and a feeding port, and further comprises a first water cooling plate and a second water cooling plate, a rotor disc and a hammer head are arranged in the milling chamber, a first fan is arranged on one side of the milling chamber, a second fan is arranged on the other side of the milling chamber, a discharging port is formed in one end of the first fan, and a water outlet is formed in the other end of the second fan. A feeding bin is arranged below the feeding port, and a feeding baffle is arranged in the feeding bin. In order to solve the problems that in the material crushing process of a crushing device, a large amount of heat energy is generated, crushed materials have the risk of being melted, and consequently the crushing effect is affected, two water cooling plates are arranged on the inner wall of a grinding chamber, when the temperature in the grinding chamber is too high, cold water is injected into the water cooling plates, and then the temperature in the grinding chamber is reduced; and the possibility that the materials are melted is reduced.

The present invention relates to the field of electrochemical energy storage technology, and discloses a battery pack installation structure, including a box cover, a liquid cooling plate, and multiple battery modules located on the liquid cooling plate, the box cover is connected to the liquid cooling plate, the battery module includes an end plate, the upper surface of the battery module is provided with a wire harness protection component, the wire harness protection component and the box cover enclose a passage for smoke flow through both ends along the length direction of the battery module, and also includes a support frame for supporting the internal components of the battery pack, the support frame is located between the end plate and the front end face of the box cover, the support frame is connected to the liquid cooling plate, and the support frame is provided with a smoke sensor facing the front end face of the battery module located in the middle. The present invention can improve the early warning capability, can promptly and quickly feedback abnormal conditions in the battery pack, and then can enable maintenance personnel to quickly discover abnormal conditions in the battery pack, reduce the probability of battery components melting, deformation or rupture, as well as fire and explosion in the battery pack, and reduce the occurrence of dangerous situations.

The invention relates to the technical field of energy storage equipment, in particular to a battery structure assembly, a battery and a manufacturing method, and the battery structure assembly comprises a shell, a sealing insulation assembly, a pole and a high-temperature-resistant insulation ring. A first end plate of the shell is provided with a first through hole, and the part, located in the first through hole, of the sealing insulation assembly forms a second through hole. The pole comprises a main body part and a bottom plate, the main body part is inserted into the second through hole, the bottom plate is located in the battery, and the sealing insulation assembly is partially clamped between the bottom plate and the first end plate. The high-temperature-resistant insulating ring is arranged on the pole in a sleeving manner, and is partially clamped between the sealing insulating assembly and the bottom plate. The battery comprises a battery cell and the battery structure assembly, the battery cell is located in the shell, and the battery can prevent short circuit. The manufacturing method is applied to manufacturing the battery structure assembly and comprises the following steps: uniformly mixing the ceramic powder and the polypropylene particles by adopting stirring equipment, and then carrying out injection molding on the mixed material by adopting an injection molding machine to form the high-temperature-resistant insulating ring.

The utility model relates to the technical field of cutting machinery, and discloses cutting equipment for processing a release fork, which solves the problems of the cutting equipment for processing the release fork in the current market, and comprises a cutting base, a clamp is arranged at the top of the cutting base, and an adjusting holding rod is arranged on one side of the clamp. A side supporting frame is movably connected to the other side of the cutting base, a top frame is arranged at the top of the side supporting frame, and a cutting machine body is movably connected to one side of the top frame; the arc-shaped baffle on one side of the cutting machine body can be used for protecting surrounding personnel, the situation that external objects or human bodies make contact with the surface of the rotating cutting machine body is reduced, the soft baffles on the two sides of the strip-shaped frame can be used for blocking splashed chippings when the surface of the cutting machine body makes contact with the separation shifting fork for cutting, and the situation that the chippings splash is reduced; the surface of the cutting machine body is cooled through wind power generated by the rotating transmission fan, and the situation that cutting chips are melted or attached to the cutting face can be reduced.

This application provides a flue gas particulate matter sampling system, comprising a sampling head, a first sampling bend, a sampling straight pipe, a first connecting pipe, a second sampling bend, and a second connecting pipe sequentially connected to an automatic sampler. The first sampling bend includes a first bend body, one end of which is connected to the sampling head, and the other end of which is connected to one end of the sampling straight pipe. The second sampling bend includes a second bend body, a filter membrane, and a gasket, one end of which is connected to the other end of the first connecting pipe. The other end of the second bend body, the filter membrane, and the gasket are sequentially arranged, with a sealing ring located at the edge of the other end of the second bend body, the filter membrane, and the gasket. The sealing ring securely connects the other end of the second bend body, the filter membrane, and the gasket. This application, by placing a sampling straight pipe and a first connecting pipe between the first and second sampling bends, reduces the risk of melting of the second sampling bend due to excessively high flue gas particulate matter temperatures, thus protecting the second sampling bend.

The present invention relates to the field of refrigeration technology, and discloses an ice storage type ice making machine, including a machine body, an evaporator is installed inside the machine body, a plurality of evaporation tubes are fixedly connected to the bottom of the evaporator, and a high-efficiency energy-saving ice-removing component for enhancing the refrigeration and heating effects of the evaporator is arranged inside the machine body. The high-efficiency energy-saving ice-removing component includes a plurality of striped protrusions fixedly connected to the outer surface of the evaporation tube, and the striped protrusions are all inclined. The present invention improves the problems of low ice-making efficiency and fast melting speed of ice cubes in the prior art through the high-efficiency energy-saving ice-removing component. First, the striped protrusions increase the cooling area of ​​the evaporation tube and the ice cubes, thereby enhancing the cooling effect. At the same time, due to its inclined posture, when the ice cubes are heated to make them fall off, in addition to being subjected to gravity, the ice cubes will also be subjected to an inclined downward guiding force. This guiding force can accelerate the speed at which the ice cubes detach from the evaporation tube, effectively improving the problem of excessive heating and melting of ice cubes in the prior art.

The utility model relates to the technical field of steelmaking, in particular to steelmaking equipment which comprises a steelmaking furnace, a movable seat arranged below the steelmaking furnace, supporting plates symmetrically arranged on the upper surface of the movable seat, a hydraulic cylinder arranged in the middle of the lower surface of a U-shaped frame, an electric push rod arranged on the rear end face of the U-shaped frame and a fixed seat arranged below the movable seat. A driving assembly for adjusting the reciprocating motion of the movable seat is arranged on the upper surface of the fixed seat close to the left end; according to the steel-making equipment, the steel-making furnace with the protective cover is rotationally connected with the supporting plate on the movable base under the cooperation of the main shaft, the top of the supporting plate is matched with the U-shaped frame with the hydraulic cylinder and the electric push rod, the telescopic arm of the hydraulic cylinder stretches or retracts to achieve overturning cooperation of the steel-making furnace, and the movable base is matched with the T-shaped groove in the fixed base in an inserted mode; the movable seat horizontally reciprocates left and right on the fixed seat, so that a mixed solid-liquid mixture in the steelmaking furnace shakes back and forth, and the interior is uniformly mixed through continuous shaking.

The utility model discloses a 5G communication tower deicing device which is characterized in that a mounting frame is fixedly connected to the side surface of a tower body, a communication antenna is fixedly connected to the front surface of the mounting frame, a heat conduction net is fixedly connected to the front surface of the mounting frame, the communication antenna is located in the heat conduction net, and a heat conduction plate is fixedly connected to the side surface of the mounting frame; the front surface of the heat-conducting plate is fixedly connected with the side surface of the heat-conducting net, the side surface of the mounting frame is fixedly connected with a heating device, the output end of the heating device is fixedly connected with a heat-conducting rod, the other end of the heat-conducting rod is fixedly connected to the side surface of the heat-conducting plate, and the inner surface of the tower body is fixedly connected with a vibration motor; the output end of the vibration motor is fixedly connected with a vibration rod, the other end of the vibration rod is fixedly connected to the side surface of the communication antenna, through the components, ice blocks on the surface of the communication antenna can be removed through vibration and heating, and the performance of the communication antenna is kept.

The present application relates to the technical field of fuel cells, and specifically discloses a method for preparing a fuel cell graphite composite plate and a graphite composite plate made thereof. A method for preparing a fuel cell graphite composite plate is as follows: S1, raw material granulation: weigh 201±10 parts of graphite composite powder and spread them evenly on a flat plate, dry them at 90‑150°C for 10‑30min, and crush them after cooling to obtain composite powder particles with a particle size of 200±100 mesh; S2, spread the obtained composite powder particles evenly into a mold, perform low-pressure pre-pressing during molding, and then perform secondary distribution on the gas flow field side, and finally perform hot pressing to obtain a fuel cell composite graphite plate. The fuel cell graphite composite plate of the present application can be used to prepare fuel cells, and it has the advantages of low contact resistance with carbon paper and high conductivity; in addition, the preparation method of the present application has the advantages of convenient distribution and reducing the adverse effects of the contact resistance between the composite plate and the membrane electrode on the performance of the fuel cell.